Keith Larsen

Keith Larsen is one of our resident experts in tax and accounting, bringing more than 23 years of experience in the financial industry. A graduate of Brigham Young University with a degree in Accounting, Keith built a strong foundation in both corporate finance and public accounting. He served as Vice President of Overhead Construction and later Controller for X-L Cable Corporation, a telecommunications construction company based in Seattle, while also working alongside his father, Lawrence B. Larsen, in his CPA practice. In 2005, Keith partnered with his father and brother, David, to establish MainStreet Financial Services, which later became MainStreet Tax & Accounting. Beyond public accounting, Keith has been involved in several successful business ventures, including Workforce Solutions LLC, Prestige Energy Solutions LLC, and LLB Investments LLC, providing him with valuable firsthand experience in business operations, management, and financial strategy.

Keith’s broad business background allows him to offer practical, results-oriented guidance to clients while maintaining a strong commitment to communication and personalized service. He takes pride in helping individuals and businesses achieve financial stability and growth, working closely with clients to understand their unique needs and develop effective solutions. Following the successful sale of MainStreet Tax & Accounting in 2019, Keith has continued to serve clients as an independent contractor, providing the same trusted expertise and dedication that have defined his career. Outside of work, Keith enjoys spending time with his wife, Sheri, their four children, and grandchildren. Whether boating, wake surfing, camping, hunting, fishing, traveling, or enjoying the outdoors, he values family above all else and believes that life’s greatest experiences are those shared with loved ones.